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| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-25 18:56:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 11:11:55 +0200 |
| commit | ee30a7b2fc072f139dac44826860d2c1f422137c (patch) | |
| tree | 4f11173879b25cc31822cb0a8d9dbd48395e74bc /include/linux/init_task.h | |
| parent | 07354eb1a74d1e1ece29f8bafe0b46e8c77a95ef (diff) | |
| download | lwn-ee30a7b2fc072f139dac44826860d2c1f422137c.tar.gz lwn-ee30a7b2fc072f139dac44826860d2c1f422137c.zip | |
locking, sched: Annotate thread_group_cputimer as raw
The thread_group_cputimer lock can be taken in atomic context and therefore
cannot be preempted on -rt - annotate it.
In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/init_task.h')
| -rw-r--r-- | include/linux/init_task.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h index d14e058aaeed..08ffab01e76c 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -42,7 +42,7 @@ extern struct fs_struct init_fs; .cputimer = { \ .cputime = INIT_CPUTIME, \ .running = 0, \ - .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ + .lock = __RAW_SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ }, \ .cred_guard_mutex = \ __MUTEX_INITIALIZER(sig.cred_guard_mutex), \ |